Air quality in Matsue, Japan today
Mr. Duck’s Air Quality Score
Good air today for Matsue, Japan
This friendly indicator summarizes the latest city readings. For health guidance, please see: EPA AirNow or WHO.
Air quality today
The air quality in Matsue is classified as Good today. The primary pollutant identified is PM2.5, with a measured concentration of 6.0 µg/m³ based on six valid observations reported through OpenAQ.
Overall conditions meet the criteria for a Good rating, and no additional pollutants are highlighted in the current assessment. This page is informational; for health guidance, use official sources such as EPA AirNow or WHO.
Latest sensor values
PM categories follow US EPA AQI breakpoints, shown here as an estimate derived from the latest valid measurements (this project does not compute EPA NowCast/24-hour AQI yet).
What the data includes
The dataset for Matsue pulls hourly readings from a single monitoring site located at 松江市西浜佐陀町５８２－１, giving six rows of data—one row per pollutant. The pollutants covered are carbon monoxide (CO), nitrogen oxide (NO), nitrogen dioxide (NO₂), total oxides of nitrogen (NOX), fine particulate matter (PM2.5) and sulfur dioxide (SO₂). All six measurements were last refreshed on 2026-02-10 22:00 UTC, which falls within the “updated within three days” window, so the information is current as of that timestamp.
Across the six pollutants the recorded values show no variation: each metric’s minimum, median and maximum are identical. CO registers at 0.2 ppm, NO at 0.0 ppm, both NO₂ and NOX at 0.007 ppm, PM2.5 at 6.0 µg/m³ and SO₂ at 0.0 ppm. Because the dataset contains only a single station, there is no spatial spread of readings within the city; conditions elsewhere may differ from those captured at this location.
The uniformity of timestamps means that every pollutant’s latest reading is equally fresh, but the limited number of stations (one) restricts the breadth of coverage. Consequently, while the data provides an up‑to‑date snapshot for the listed pollutants at the specific site, it does not capture city‑wide variability or trends over time. Users should keep in mind that air quality can change across neighborhoods and throughout the day, and this single‑point dataset reflects only the conditions measured at the reporting location on the stated date and time.
Learn more about sources and filtering: About the data.
Trusted references: WHO (Air pollution) · US EPA AirNow · European Environment Agency (Air)
Latest sensor values (bars)
PM categories follow US EPA AQI breakpoints, shown here as an estimate derived from the latest valid measurements (this project does not compute EPA NowCast/24-hour AQI yet).
Data notes
The data shown reflects six valid measurements and is updated within 3 days, with the most recent reading recorded on 2026‑02‑10 at 22:00 UTC. These values represent a snapshot of ambient conditions across Matsue; air quality can differ by specific location and time of day within the city, so individual experiences may vary from the reported figures.
OpenAQ station rows
| Station | Parameter | Value | Unit | Last updated |
|---|---|---|---|---|
| 松江市西浜佐陀町５８２－１ | co | 0.2 | ppm | 2026-02-10 22:00 UTC |
| 松江市西浜佐陀町５８２－１ | no | 0.0 | ppm | 2026-02-10 22:00 UTC |
| 松江市西浜佐陀町５８２－１ | no2 | 0.007 | ppm | 2026-02-10 22:00 UTC |
| 松江市西浜佐陀町５８２－１ | nox | 0.007 | ppm | 2026-02-10 22:00 UTC |
| 松江市西浜佐陀町５８２－１ | pm25 | 6.0 | µg/m³ | 2026-02-10 22:00 UTC |
| 松江市西浜佐陀町５８２－１ | so2 | 0.0 | ppm | 2026-02-10 22:00 UTC |